private static bool CdoSysExists()
{
if (cdoSysLibraryInfo != CdoSysLibraryStatus.NotChecked)
{
return(cdoSysLibraryInfo == CdoSysLibraryStatus.Exists);
}
IntPtr hModule = System.Web.UnsafeNativeMethods.LoadLibrary("cdosys.dll");
if (hModule != IntPtr.Zero)
{
System.Web.UnsafeNativeMethods.FreeLibrary(hModule);
cdoSysLibraryInfo = CdoSysLibraryStatus.Exists;
return(true);
}
cdoSysLibraryInfo = CdoSysLibraryStatus.DoesntExist;
return(false);
}
private static bool CdoSysExists()
{
// Check that the cdosys.dll exists
if (cdoSysLibraryInfo == CdoSysLibraryStatus.NotChecked)
{
string fullDllPath = PathUtil.GetSystemDllFullPath("cdosys.dll");
IntPtr cdoSysModule = UnsafeNativeMethods.LoadLibrary(fullDllPath);
if (cdoSysModule != IntPtr.Zero)
{
UnsafeNativeMethods.FreeLibrary(cdoSysModule);
cdoSysLibraryInfo = CdoSysLibraryStatus.Exists;
return(true);
}
cdoSysLibraryInfo = CdoSysLibraryStatus.DoesntExist;
return(false);
}
// return cached value, found at a previous check
return(cdoSysLibraryInfo == CdoSysLibraryStatus.Exists);
}
private static bool CdoSysExists() {
// Check that the cdosys.dll exists
if(cdoSysLibraryInfo == CdoSysLibraryStatus.NotChecked) {
string fullDllPath = PathUtil.GetSystemDllFullPath("cdosys.dll");
IntPtr cdoSysModule = UnsafeNativeMethods.LoadLibrary(fullDllPath);
if(cdoSysModule != IntPtr.Zero) {
UnsafeNativeMethods.FreeLibrary(cdoSysModule);
cdoSysLibraryInfo = CdoSysLibraryStatus.Exists;
return true;
}
cdoSysLibraryInfo = CdoSysLibraryStatus.DoesntExist;
return false;
}
// return cached value, found at a previous check
return (cdoSysLibraryInfo == CdoSysLibraryStatus.Exists);
}
private static bool CdoSysExists()
{
if (cdoSysLibraryInfo != CdoSysLibraryStatus.NotChecked)
{
return (cdoSysLibraryInfo == CdoSysLibraryStatus.Exists);
}
IntPtr hModule = System.Web.UnsafeNativeMethods.LoadLibrary("cdosys.dll");
if (hModule != IntPtr.Zero)
{
System.Web.UnsafeNativeMethods.FreeLibrary(hModule);
cdoSysLibraryInfo = CdoSysLibraryStatus.Exists;
return true;
}
cdoSysLibraryInfo = CdoSysLibraryStatus.DoesntExist;
return false;
}
